Deep-well rotary drilling apparatus



im. www* DEEP WELL RTARY DRILLING APPARATUS Fil'eduuf. 13, 3.924

nos

EARL .dllEtlilER ldlllill, Ul@ OVVWWAW OKLAHOMA, ASSIGNOR T BESS L. REEDLOF HGUSTON TEXAS.

,Application tiled August i3, 1924i. Serial No. 731,782.

. and replaced when worn.

titl

:in the accompanying drawings,

Fig. l is a sectional view of the cutter.

2 is a plan view oi bearing ring upon which the tooth carrying ring turns and the side members which interlock therewith.

Fig. 3 is an edge view ot the bearing ring'.

Fig. 4 is a tae view ot one of the members ot the main body ot the cutter organization.

Fig. 5 tion. ln these drawiiiggs` l indicates a ring or comparatively thin shell having the teeth El termed on its periphery. A'this ring turns on a bearingn ringl 3 which is held between the members el of the niain body ot the cutter. These members las shown meet on the cen` ter line 5 and they have tdt-tiges between 'which the bearing ring is held. llie inner ends of members et may be spaced apart. rlhe bearing ring; is held against rotary moven'ient relative to the main members by tongues or lugs 7 on the latter which enter notches 8 in edges of the bearing ring'.

'llhe main members have an opening or bore 9 to receive a pin seated in the walls of the head ot the'boring bit, between which walls the main body is located. rlh-ese main members have shoulders 10 to engage com; plementary shoulders l0 in the said walls ot thebit heacbto talre the up thrust ot the cutter when-at worlr on the bottoin of the well beingm drilled. The parts of the cutter are assembled and th-en slipped into the poclret formed in the drill bit or head to receive it and then the pin is inserted and is a sectional view of a modifica suitably held in the bit head. The members ldo not have to be connected together because they will be held in proper position relative each other by the Walls ot the pochet in vwhich the cutter' is located. lnstead ozt the center pin the cutter organization can be retained in the poel-ret of the drill bit by other means engaging the sections., vllhe weer ring 3 may be renewed when wornu Illhe tooth carrying' ring l has a broad rib la" which tits betvveenthe sides ont the niembers and turns on the 'vt/'ear ring d." illtae toothed ring'is nearly ot the 4 tcrior surface of the full Width ot the main body, it having; shoulders overlying the flanges of the body members. which the wear ring 3 is omitted, the toothed ring being shown at la and the body members at 4a in slightly modiiied torni.

rthe' tooth carrying ring may be of either cylindrical or frusto. conical form. rlhe eX- Wear ring 8 may be either cylindrical or truste conical form `to correspond with interior surface of the tooth carrying ring. lhe interior surface of the wear ring 3 may be cylindrical, square, hexagon, Octagon or other torni and the surface ot the members 4 is made to correspond to the shape of the surface holding these parts against rotary movement relative to each other.

' l claim l. ln combination in a deep well drilling' apparatus, abit head having a pocket, a. rotary cutter organization having a massive body'divided into annular sections arranged coairially, side by side, a comparatively thin ring mounted "to rotate on said sections, said ring' and body having intereng'aging1 thrust sustainingl shoulders and centering each other to b e handled as one body in placing .into or removal from the pocket, said massive body sections bearing on the walls oit 'the pocket and havingl shoulders engaging' complementary shoulders on the walls ot In Fig. 5, .l show a modification in dit the pocket to prevent the body from turning' and to'sustain the upward thrust7 and means engaging the vbody to hold it within the pocket, substantially as described.

' Q. ln combination with a bit head for deep well rotary drillingI having' a recess or pooku et, rotary cutter organization -to .tit said pocket composed ot sections divided from each other .in a plane transverse to the axis ofthe cutter, a Wear ring and a toothed cutter ring, said Wear ringand cutter ring being held by and between said sections, said cutter ring being1 rotatable on-the Wear ring, and centeringthe vvear ring and body sections to be handled as one body, substantial- -ly as described.

. 3. ln combination with a bit head for deep well rotary drillingu having' a recess or pocket, a'rotary cutter'orgfanization to tit said pocket com osedoiL a. main body in sections divided trom eachother in a plane 'transverse to the anis-ot the cutter, a Wear' ring and a toothed cutter ring held by and said pocket composed ot a main body in' sections divided from each other in a plane transverse to the axis ot' the cutter. a Wear rlng and a toothed cutter ring held by and between said sections, said cutter ring being rotatable on the Wear ring, said Wear ring surrounding-the sections and interlocking q i o u at its edge with the ad]acent body section `so that upon assembling the parts the wear ring will be held against rotation relative to the section, substantially asdescribed,

5. In combination With a bit head for deep Wellrotary drilling, having a recess or pocket, a 'rotary cutter organization to tit` said pocket, composed of sections divided from each other, a wear ring and a toothed cutter iing held by,v and between said sec tions and centering said sections, said cutter ring being rotatable on the Wear ring, said wear ring having means complementary with the sections for holding the ring against rotation. (5. In combination in a deep Well rotary drilling apparatus, a bit head having a pocltet,a rotary cutter organization having a massive body divided in a plane transverse tothe axis ol the cutter into annular sections arrangcd Coaxially, side by side, a toothed cutter ring mounted to rotate on said sections, said cutter ring and body sections having interengaging thrust sustaining shoulders and centering each other to be handled as one body inV insertion into or removal from the pocket, said massive body sections bearing on 'the Walls of the pocket, each opposite Wall of said pocket having a cutaway` portion near its lower end forming a shoulder extending laterally across said wall, said annular sections each having a segmental enlargement providingl a chordlike shoulder ada ted to cooperate with the complementary slioulders of the Walls to prevent the body from turning and to sustain 4the upward thrust, and means engaging` the bod)T to hold it in the pocket.

In testimony whereof, I ax my signature.

EARL ABNER naar 

